1 /* ****************************************************************
3 * Copyright 2015 Samsung Electronics All Rights Reserved.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
19 ******************************************************************/
21 #include <sys/types.h>
22 #include <sys/socket.h>
23 #include <sys/select.h>
24 #include <sys/ioctl.h>
29 #include <arpa/inet.h>
30 #include <netinet/in.h>
35 #include <sys/socket.h>
36 #include <netinet/in.h>
40 #include "catcpinterface.h"
42 #include "caadapterutils.h"
44 #include "oic_malloc.h"
45 #include "oic_string.h"
48 * Logging tag for module name.
50 #define TAG "OIC_CA_TCP_SERVER"
53 * Server port number for local test.
55 #define SERVER_PORT 8000
58 * Maximum CoAP over TCP header length
59 * to know the total data length.
61 #define TCP_MAX_HEADER_LEN 6
64 * Mutex to synchronize device object list.
66 static ca_mutex g_mutexObjectList = NULL;
69 * Conditional mutex to synchronize.
71 static ca_cond g_condObjectList = NULL;
74 * Maintains the callback to be notified when data received from remote device.
76 static CATCPPacketReceivedCallback g_packetReceivedCallback;
79 * Error callback to update error in TCP.
81 static CATCPErrorHandleCallback g_TCPErrorHandler = NULL;
84 * Connected Callback to pass the connection information to RI.
86 static CATCPKeepAliveHandleCallback g_keepaliveCallback = NULL;
88 static CAResult_t CATCPCreateMutex();
89 static void CATCPDestroyMutex();
90 static CAResult_t CATCPCreateCond();
91 static void CATCPDestroyCond();
92 static int CACreateAcceptSocket(int family, CASocket_t *sock);
93 static void CAAcceptConnection(CATransportFlags_t flag, CASocket_t *sock);
94 static void CAFindReadyMessage();
95 static void CASelectReturned(fd_set *readFds, int ret);
96 static void CAReceiveMessage(int fd);
97 static void CAReceiveHandler(void *data);
98 static int CATCPCreateSocket(int family, CATCPSessionInfo_t *tcpServerInfo);
100 #define CHECKFD(FD) \
101 if (FD > caglobals.tcp.maxfd) \
102 caglobals.tcp.maxfd = FD;
104 static void CATCPDestroyMutex()
106 if (g_mutexObjectList)
108 ca_mutex_free(g_mutexObjectList);
109 g_mutexObjectList = NULL;
113 static CAResult_t CATCPCreateMutex()
115 if (!g_mutexObjectList)
117 g_mutexObjectList = ca_mutex_new();
118 if (!g_mutexObjectList)
120 OIC_LOG(ERROR, TAG, "Failed to created mutex!");
121 return CA_STATUS_FAILED;
128 static void CATCPDestroyCond()
130 if (g_condObjectList)
132 ca_cond_free(g_condObjectList);
133 g_condObjectList = NULL;
137 static CAResult_t CATCPCreateCond()
139 if (!g_condObjectList)
141 g_condObjectList = ca_cond_new();
142 if (!g_condObjectList)
144 OIC_LOG(ERROR, TAG, "Failed to created cond!");
145 return CA_STATUS_FAILED;
151 static void CAReceiveHandler(void *data)
154 OIC_LOG(DEBUG, TAG, "IN - CAReceiveHandler");
156 while (!caglobals.tcp.terminate)
158 CAFindReadyMessage();
161 ca_mutex_lock(g_mutexObjectList);
162 ca_cond_signal(g_condObjectList);
163 ca_mutex_unlock(g_mutexObjectList);
165 OIC_LOG(DEBUG, TAG, "OUT - CAReceiveHandler");
168 static void CAFindReadyMessage()
171 struct timeval timeout = { .tv_sec = caglobals.tcp.selectTimeout };
175 if (-1 != caglobals.tcp.ipv4.fd)
177 FD_SET(caglobals.tcp.ipv4.fd, &readFds);
179 if (-1 != caglobals.tcp.ipv6.fd)
181 FD_SET(caglobals.tcp.ipv6.fd, &readFds);
183 if (-1 != caglobals.tcp.shutdownFds[0])
185 FD_SET(caglobals.tcp.shutdownFds[0], &readFds);
187 if (-1 != caglobals.tcp.connectionFds[0])
189 FD_SET(caglobals.tcp.connectionFds[0], &readFds);
192 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
193 for (size_t i = 0; i < length; i++)
195 CATCPSessionInfo_t *svritem =
196 (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
197 if (svritem && 0 <= svritem->fd)
199 FD_SET(svritem->fd, &readFds);
203 int ret = select(caglobals.tcp.maxfd + 1, &readFds, NULL, NULL, &timeout);
205 if (caglobals.tcp.terminate)
207 OIC_LOG_V(DEBUG, TAG, "Packet receiver Stop request received.");
214 OIC_LOG_V(FATAL, TAG, "select error %s", strerror(errno));
219 CASelectReturned(&readFds, ret);
222 static void CASelectReturned(fd_set *readFds, int ret)
224 VERIFY_NON_NULL_VOID(readFds, TAG, "readFds is NULL");
226 if (caglobals.tcp.ipv4.fd != -1 && FD_ISSET(caglobals.tcp.ipv4.fd, readFds))
228 CAAcceptConnection(CA_IPV4, &caglobals.tcp.ipv4);
231 else if (caglobals.tcp.ipv6.fd != -1 && FD_ISSET(caglobals.tcp.ipv6.fd, readFds))
233 CAAcceptConnection(CA_IPV6, &caglobals.tcp.ipv6);
236 else if (-1 != caglobals.tcp.connectionFds[0] &&
237 FD_ISSET(caglobals.tcp.connectionFds[0], readFds))
239 // new connection was created from remote device.
240 // exit the function to update read file descriptor.
241 char buf[MAX_ADDR_STR_SIZE_CA] = {0};
242 ssize_t len = read(caglobals.tcp.connectionFds[0], buf, sizeof (buf));
247 OIC_LOG_V(DEBUG, TAG, "Received new connection event with [%s]", buf);
248 FD_CLR(caglobals.tcp.connectionFds[0], readFds);
253 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
254 for (size_t i = 0; i < length; i++)
256 CATCPSessionInfo_t *svritem =
257 (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
258 if (svritem && svritem->fd >= 0)
260 if (FD_ISSET(svritem->fd, readFds))
262 CAReceiveMessage(svritem->fd);
263 FD_CLR(svritem->fd, readFds);
270 static void CAAcceptConnection(CATransportFlags_t flag, CASocket_t *sock)
272 VERIFY_NON_NULL_VOID(sock, TAG, "sock is NULL");
274 struct sockaddr_storage clientaddr;
275 socklen_t clientlen = sizeof (struct sockaddr_in);
277 int sockfd = accept(sock->fd, (struct sockaddr *)&clientaddr, &clientlen);
280 CATCPSessionInfo_t *svritem =
281 (CATCPSessionInfo_t *) OICCalloc(1, sizeof (*svritem));
284 OIC_LOG(ERROR, TAG, "Out of memory");
289 svritem->fd = sockfd;
290 svritem->sep.endpoint.flags = flag;
291 CAConvertAddrToName((struct sockaddr_storage *)&clientaddr, clientlen,
292 (char *) &svritem->sep.endpoint.addr, &svritem->sep.endpoint.port);
294 ca_mutex_lock(g_mutexObjectList);
295 bool result = u_arraylist_add(caglobals.tcp.svrlist, svritem);
298 OIC_LOG(ERROR, TAG, "u_arraylist_add failed.");
301 ca_mutex_unlock(g_mutexObjectList);
304 ca_mutex_unlock(g_mutexObjectList);
310 static void CAReceiveMessage(int fd)
312 // #1. get remote device information from file descriptor.
314 CATCPSessionInfo_t *svritem = CAGetSessionInfoFromFD(fd, &index);
317 OIC_LOG(ERROR, TAG, "there is no connection information in list");
321 // #2. get already allocated memory size.
322 size_t bufSize = (svritem->totalDataLen == 0) ? TCP_MAX_HEADER_LEN : svritem->totalDataLen;
323 if (!svritem->recvData)
325 svritem->recvData = (unsigned char *) OICCalloc(1, bufSize);
326 if (!svritem->recvData)
328 OIC_LOG(ERROR, TAG, "out of memory");
329 CADisconnectTCPSession(svritem, index);
334 // #3. receive data from remote device.
335 ssize_t recvLen = recv(fd, svritem->recvData + svritem->recvDataLen,
336 bufSize - svritem->recvDataLen, 0);
339 if(EWOULDBLOCK != errno)
341 OIC_LOG_V(ERROR, TAG, "Recvfrom failed %s", strerror(errno));
342 CADisconnectTCPSession(svritem, index);
346 svritem->recvDataLen += recvLen;
348 // #4. get actual data length from coap over tcp header.
349 if (!svritem->totalDataLen)
351 coap_transport_type transport = coap_get_tcp_header_type_from_initbyte(
352 ((unsigned char *) svritem->recvData)[0] >> 4);
354 size_t headerLen = coap_get_tcp_header_length_for_transport(transport);
355 if (svritem->recvDataLen >= headerLen)
357 svritem->totalDataLen = CAGetTotalLengthFromHeader(
358 (unsigned char *) svritem->recvData);
359 bufSize = svritem->totalDataLen;
360 unsigned char *newBuf = OICRealloc(svritem->recvData, bufSize);
363 OIC_LOG(ERROR, TAG, "out of memory");
364 CADisconnectTCPSession(svritem, index);
367 svritem->recvData = newBuf;
371 // #5. pass the received data information to upper layer.
372 if ((svritem->totalDataLen == svritem->recvDataLen) && g_packetReceivedCallback)
374 svritem->sep.endpoint.adapter = CA_ADAPTER_TCP;
375 g_packetReceivedCallback(&svritem->sep, svritem->recvData, svritem->recvDataLen);
376 OIC_LOG_V(DEBUG, TAG, "total received data len:%d", svritem->recvDataLen);
378 // initialize data info to receive next message.
379 OICFree(svritem->recvData);
380 svritem->recvData = NULL;
381 svritem->recvDataLen = 0;
382 svritem->totalDataLen = 0;
388 static void CAWakeUpForReadFdsUpdate(const char *host)
390 if (caglobals.tcp.connectionFds[1] != -1)
395 len = write(caglobals.tcp.connectionFds[1], host, strlen(host));
396 } while ((len == -1) && (errno == EINTR));
398 if ((len == -1) && (errno != EINTR) && (errno != EPIPE))
400 OIC_LOG_V(DEBUG, TAG, "write failed: %s", strerror(errno));
405 static CAResult_t CATCPConvertNameToAddr(int family, const char *host, uint16_t port,
406 struct sockaddr_storage *sockaddr)
408 struct addrinfo *addrs = NULL;
409 struct addrinfo hints = { .ai_family = family,
410 .ai_protocol = IPPROTO_TCP,
411 .ai_socktype = SOCK_STREAM,
412 .ai_flags = AI_NUMERICHOST };
414 int r = getaddrinfo(host, NULL, &hints, &addrs);
419 OIC_LOG_V(ERROR, TAG, "getaddrinfo failed: errno %s", strerror(errno));
423 OIC_LOG_V(ERROR, TAG, "getaddrinfo failed: %s", gai_strerror(r));
426 return CA_STATUS_FAILED;
428 // assumption: in this case, getaddrinfo will only return one addrinfo
429 // or first is the one we want.
430 if (addrs[0].ai_family == AF_INET6)
432 memcpy(sockaddr, addrs[0].ai_addr, sizeof (struct sockaddr_in6));
433 ((struct sockaddr_in6 *)sockaddr)->sin6_port = htons(port);
437 memcpy(sockaddr, addrs[0].ai_addr, sizeof (struct sockaddr_in));
438 ((struct sockaddr_in *)sockaddr)->sin_port = htons(port);
444 static int CATCPCreateSocket(int family, CATCPSessionInfo_t *svritem)
446 // #1. create tcp socket.
447 int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
450 OIC_LOG_V(ERROR, TAG, "create socket failed: %s", strerror(errno));
454 // #2. convert address from string to binary.
455 struct sockaddr_storage sa = { .ss_family = family };
456 CAResult_t res = CATCPConvertNameToAddr(family, svritem->sep.endpoint.addr,
457 svritem->sep.endpoint.port, &sa);
458 if (CA_STATUS_OK != res)
464 // #3. set socket length.
466 if (sa.ss_family == AF_INET6)
468 struct sockaddr_in6 *sock6 = (struct sockaddr_in6 *)&sa;
469 if (!sock6->sin6_scope_id)
471 sock6->sin6_scope_id = svritem->sep.endpoint.interface;
473 socklen = sizeof(struct sockaddr_in6);
477 socklen = sizeof(struct sockaddr_in);
480 // #4. connect to remote server device.
481 if (connect(fd, (struct sockaddr *)&sa, socklen) < 0)
483 OIC_LOG_V(ERROR, TAG, "failed to connect socket, %s", strerror(errno));
488 OIC_LOG(DEBUG, TAG, "connect socket success");
489 CAWakeUpForReadFdsUpdate(svritem->sep.endpoint.addr);
493 static int CACreateAcceptSocket(int family, CASocket_t *sock)
495 VERIFY_NON_NULL_RET(sock, TAG, "sock", -1);
499 OIC_LOG(DEBUG, TAG, "accept socket created already");
504 struct sockaddr_storage server = { .ss_family = family };
506 int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
509 OIC_LOG(ERROR, TAG, "Failed to create socket");
513 if (family == AF_INET6)
515 // the socket is re‐stricted to sending and receiving IPv6 packets only.
517 if (-1 == setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof (on)))
519 OIC_LOG_V(ERROR, TAG, "IPV6_V6ONLY failed: %s", strerror(errno));
522 ((struct sockaddr_in6 *)&server)->sin6_port = htons(sock->port);
523 socklen = sizeof (struct sockaddr_in6);
527 ((struct sockaddr_in *)&server)->sin_port = htons(sock->port);
528 socklen = sizeof (struct sockaddr_in);
532 if (-1 == setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)))
534 OIC_LOG(ERROR, TAG, "setsockopt SO_REUSEADDR");
538 if (-1 == bind(fd, (struct sockaddr *)&server, socklen))
540 OIC_LOG_V(ERROR, TAG, "bind socket failed: %s", strerror(errno));
544 if (listen(fd, caglobals.tcp.listenBacklog) != 0)
546 OIC_LOG(ERROR, TAG, "listen() error");
550 if (!sock->port) // return the assigned port
552 if (-1 == getsockname(fd, (struct sockaddr *)&server, &socklen))
554 OIC_LOG_V(ERROR, TAG, "getsockname failed: %s", strerror(errno));
557 sock->port = ntohs(family == AF_INET6 ?
558 ((struct sockaddr_in6 *)&server)->sin6_port :
559 ((struct sockaddr_in *)&server)->sin_port);
572 static void CAInitializePipe(int *fds)
577 ret = fcntl(fds[0], F_GETFD);
580 ret = fcntl(fds[0], F_SETFD, ret|FD_CLOEXEC);
584 ret = fcntl(fds[1], F_GETFD);
588 ret = fcntl(fds[1], F_SETFD, ret|FD_CLOEXEC);
598 OIC_LOG_V(ERROR, TAG, "pipe failed: %s", strerror(errno));
603 CAResult_t CATCPStartServer(const ca_thread_pool_t threadPool)
605 if (caglobals.tcp.started)
610 if (!caglobals.tcp.ipv4tcpenabled)
612 caglobals.tcp.ipv4tcpenabled = true; // only needed to run CA tests
614 if (!caglobals.tcp.ipv6tcpenabled)
616 caglobals.tcp.ipv6tcpenabled = true; // only needed to run CA tests
619 CAResult_t res = CATCPCreateMutex();
620 if (CA_STATUS_OK == res)
622 res = CATCPCreateCond();
624 if (CA_STATUS_OK != res)
626 OIC_LOG(ERROR, TAG, "failed to create mutex/cond");
630 ca_mutex_lock(g_mutexObjectList);
631 if (!caglobals.tcp.svrlist)
633 caglobals.tcp.svrlist = u_arraylist_create();
635 ca_mutex_unlock(g_mutexObjectList);
637 if (caglobals.server)
639 caglobals.tcp.ipv4.fd = CACreateAcceptSocket(AF_INET, &caglobals.tcp.ipv4);
640 CHECKFD(caglobals.tcp.ipv4.fd);
641 caglobals.tcp.ipv6.fd = CACreateAcceptSocket(AF_INET6, &caglobals.tcp.ipv6);
642 CHECKFD(caglobals.tcp.ipv6.fd);
644 OIC_LOG_V(DEBUG, TAG, "IPv4 socket fd=%d, port=%d",
645 caglobals.tcp.ipv4.fd, caglobals.tcp.ipv4.port);
646 OIC_LOG_V(DEBUG, TAG, "IPv6 socket fd=%d, port=%d",
647 caglobals.tcp.ipv6.fd, caglobals.tcp.ipv6.port);
650 // create pipe for fast shutdown
651 CAInitializePipe(caglobals.tcp.shutdownFds);
652 CHECKFD(caglobals.tcp.shutdownFds[0]);
653 CHECKFD(caglobals.tcp.shutdownFds[1]);
655 // create pipe for connection event
656 CAInitializePipe(caglobals.tcp.connectionFds);
657 CHECKFD(caglobals.tcp.connectionFds[0]);
658 CHECKFD(caglobals.tcp.connectionFds[1]);
660 caglobals.tcp.terminate = false;
661 res = ca_thread_pool_add_task(threadPool, CAReceiveHandler, NULL);
662 if (CA_STATUS_OK != res)
664 OIC_LOG(ERROR, TAG, "thread_pool_add_task failed");
667 OIC_LOG(DEBUG, TAG, "CAReceiveHandler thread started successfully.");
669 caglobals.tcp.started = true;
673 void CATCPStopServer()
676 ca_mutex_lock(g_mutexObjectList);
678 // set terminate flag
679 caglobals.tcp.terminate = true;
681 if (caglobals.tcp.shutdownFds[1] != -1)
683 close(caglobals.tcp.shutdownFds[1]);
684 // receive thread will stop immediately
687 if (caglobals.tcp.connectionFds[1] != -1)
689 close(caglobals.tcp.connectionFds[1]);
692 if (caglobals.tcp.started)
694 ca_cond_wait(g_condObjectList, g_mutexObjectList);
696 caglobals.tcp.started = false;
699 ca_mutex_unlock(g_mutexObjectList);
701 if (-1 != caglobals.tcp.ipv4.fd)
703 close(caglobals.tcp.ipv4.fd);
704 caglobals.tcp.ipv4.fd = -1;
707 if (-1 != caglobals.tcp.ipv6.fd)
709 close(caglobals.tcp.ipv6.fd);
710 caglobals.tcp.ipv6.fd = -1;
713 CATCPDisconnectAll();
718 void CATCPSetPacketReceiveCallback(CATCPPacketReceivedCallback callback)
720 g_packetReceivedCallback = callback;
723 void CATCPSetKeepAliveCallback(CATCPKeepAliveHandleCallback keepaliveHandler)
725 g_keepaliveCallback = keepaliveHandler;
728 static size_t CACheckPayloadLength(const void *data, size_t dlen)
730 VERIFY_NON_NULL_RET(data, TAG, "data", -1);
732 coap_transport_type transport = coap_get_tcp_header_type_from_initbyte(
733 ((unsigned char *)data)[0] >> 4);
735 coap_pdu_t *pdu = coap_new_pdu(transport, dlen);
738 OIC_LOG(ERROR, TAG, "outpdu is null");
742 int ret = coap_pdu_parse((unsigned char *) data, dlen, pdu, transport);
745 OIC_LOG(ERROR, TAG, "pdu parse failed");
746 coap_delete_pdu(pdu);
750 size_t payloadLen = 0;
751 size_t headerSize = coap_get_tcp_header_length_for_transport(transport);
752 OIC_LOG_V(DEBUG, TAG, "headerSize : %d, pdu length : %d",
753 headerSize, pdu->length);
754 if (pdu->length > headerSize)
756 payloadLen = (unsigned char *) pdu->hdr + pdu->length - pdu->data;
764 static void sendData(const CAEndpoint_t *endpoint, const void *data,
765 size_t dlen, const char *fam)
767 // #1. get TCP Server object from list
769 CATCPSessionInfo_t *svritem = CAGetTCPSessionInfoFromEndpoint(endpoint, &index);
772 // if there is no connection info, connect to TCP Server
773 svritem = CAConnectTCPSession(endpoint);
776 OIC_LOG(ERROR, TAG, "Failed to create TCP server object");
777 g_TCPErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
782 // #2. check payload length
783 size_t payloadLen = CACheckPayloadLength(data, dlen);
784 // if payload length is zero, disconnect from TCP server
787 OIC_LOG(DEBUG, TAG, "payload length is zero, disconnect from remote device");
788 CADisconnectTCPSession(svritem, index);
792 // #3. check connection state
795 // if file descriptor value is wrong, remove TCP Server info from list
796 OIC_LOG(ERROR, TAG, "Failed to connect to TCP server");
797 CADisconnectTCPSession(svritem, index);
798 g_TCPErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
802 // #4. send data to TCP Server
803 ssize_t remainLen = dlen;
806 ssize_t len = send(svritem->fd, data, remainLen, 0);
809 if (EWOULDBLOCK != errno)
811 OIC_LOG_V(ERROR, TAG, "unicast ipv4tcp sendTo failed: %s", strerror(errno));
812 g_TCPErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
819 } while (remainLen > 0);
821 OIC_LOG_V(INFO, TAG, "unicast %stcp sendTo is successful: %zu bytes", fam, dlen);
824 void CATCPSendData(CAEndpoint_t *endpoint, const void *data, uint32_t datalen,
827 VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
828 VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
832 if (caglobals.tcp.ipv6tcpenabled && (endpoint->flags & CA_IPV6))
834 sendData(endpoint, data, datalen, "ipv6");
836 if (caglobals.tcp.ipv4tcpenabled && (endpoint->flags & CA_IPV4))
838 sendData(endpoint, data, datalen, "ipv4");
843 CAResult_t CAGetTCPInterfaceInformation(CAEndpoint_t **info, uint32_t *size)
845 VERIFY_NON_NULL(info, TAG, "info is NULL");
846 VERIFY_NON_NULL(size, TAG, "size is NULL");
848 return CA_NOT_SUPPORTED;
851 CATCPSessionInfo_t *CAConnectTCPSession(const CAEndpoint_t *endpoint)
853 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", NULL);
855 // #1. create TCP server object
856 CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) OICCalloc(1, sizeof (*svritem));
859 OIC_LOG(ERROR, TAG, "Out of memory");
862 memcpy(svritem->sep.endpoint.addr, endpoint->addr, sizeof(svritem->sep.endpoint.addr));
863 svritem->sep.endpoint.port = endpoint->port;
864 svritem->sep.endpoint.flags = endpoint->flags;
865 svritem->sep.endpoint.interface = endpoint->interface;
867 // #2. create the socket and connect to TCP server
868 int family = (svritem->sep.endpoint.flags & CA_IPV6) ? AF_INET6 : AF_INET;
869 int fd = CATCPCreateSocket(family, svritem);
876 // #3. add TCP connection info to list
878 ca_mutex_lock(g_mutexObjectList);
879 if (caglobals.tcp.svrlist)
881 bool res = u_arraylist_add(caglobals.tcp.svrlist, svritem);
884 OIC_LOG(ERROR, TAG, "u_arraylist_add failed.");
887 ca_mutex_unlock(g_mutexObjectList);
891 ca_mutex_unlock(g_mutexObjectList);
895 // pass the connection information to RI for keepalive.
896 if (g_keepaliveCallback)
898 g_keepaliveCallback(svritem->sep.endpoint.addr, svritem->sep.endpoint.port, true);
904 CAResult_t CADisconnectTCPSession(CATCPSessionInfo_t *svritem, size_t index)
906 VERIFY_NON_NULL(svritem, TAG, "svritem is NULL");
908 ca_mutex_lock(g_mutexObjectList);
910 // close the socket and remove TCP connection info in list
911 if (svritem->fd >= 0)
915 u_arraylist_remove(caglobals.tcp.svrlist, index);
916 OICFree(svritem->recvData);
918 // pass the connection information to RI for keepalive.
919 if (g_keepaliveCallback)
921 g_keepaliveCallback(svritem->sep.endpoint.addr, svritem->sep.endpoint.port, false);
925 ca_mutex_unlock(g_mutexObjectList);
930 void CATCPDisconnectAll()
932 ca_mutex_lock(g_mutexObjectList);
933 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
935 CATCPSessionInfo_t *svritem = NULL;
936 for (size_t i = 0; i < length; i++)
938 svritem = (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
939 if (svritem && svritem->fd >= 0)
941 shutdown(svritem->fd, SHUT_RDWR);
943 OICFree(svritem->recvData);
946 u_arraylist_destroy(caglobals.tcp.svrlist);
947 ca_mutex_unlock(g_mutexObjectList);
950 CATCPSessionInfo_t *CAGetTCPSessionInfoFromEndpoint(const CAEndpoint_t *endpoint, size_t *index)
952 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", NULL);
953 VERIFY_NON_NULL_RET(index, TAG, "index is NULL", NULL);
955 // get connection info from list
956 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
957 for (size_t i = 0; i < length; i++)
959 CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) u_arraylist_get(
960 caglobals.tcp.svrlist, i);
966 if (!strncmp(svritem->sep.endpoint.addr, endpoint->addr,
967 sizeof(svritem->sep.endpoint.addr))
968 && (svritem->sep.endpoint.port == endpoint->port)
969 && (svritem->sep.endpoint.flags & endpoint->flags))
979 CATCPSessionInfo_t *CAGetSessionInfoFromFD(int fd, size_t *index)
981 ca_mutex_lock(g_mutexObjectList);
983 // check from the last item.
984 CATCPSessionInfo_t *svritem = NULL;
985 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
986 for (size_t i = 0; i < length; i++)
988 svritem = (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
990 if (svritem && svritem->fd == fd)
993 ca_mutex_unlock(g_mutexObjectList);
998 ca_mutex_unlock(g_mutexObjectList);
1003 size_t CAGetTotalLengthFromHeader(const unsigned char *recvBuffer)
1005 OIC_LOG(DEBUG, TAG, "IN - CAGetTotalLengthFromHeader");
1007 coap_transport_type transport = coap_get_tcp_header_type_from_initbyte(
1008 ((unsigned char *)recvBuffer)[0] >> 4);
1009 size_t optPaylaodLen = coap_get_length_from_header((unsigned char *)recvBuffer,
1011 size_t headerLen = coap_get_tcp_header_length((unsigned char *)recvBuffer);
1013 OIC_LOG_V(DEBUG, TAG, "option/paylaod length [%d]", optPaylaodLen);
1014 OIC_LOG_V(DEBUG, TAG, "header length [%d]", headerLen);
1015 OIC_LOG_V(DEBUG, TAG, "total data length [%d]", headerLen + optPaylaodLen);
1017 OIC_LOG(DEBUG, TAG, "OUT - CAGetTotalLengthFromHeader");
1018 return headerLen + optPaylaodLen;
1021 void CATCPSetErrorHandler(CATCPErrorHandleCallback errorHandleCallback)
1023 g_TCPErrorHandler = errorHandleCallback;